Home / 199,140.10-298,364.55-128,983.30

Finding the Fourth Proportional to 199,140.10, 298,364.55 and 128,983.30

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Solution

The fourth proportional to 199,140.10, 298,364.55 and 128,983.30 is: 193,251.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,140.10 : 298,364.55 = 128,983.30 : x
  2. Step 2: Convert to fraction form
    199,140.10/298,364.55 = 128,983.30/x
  3. Step 3: Cross multiply
    199,140.10x = 298,364.55 × 128,983.30
  4. Step 4: Simplify right side
    199,140.10x = 38,484,044,262.02
  5. Step 5: Solve for x
    x = 38,484,044,262.02/199,140.10
  6. Step 6: Final answer
    x = 193,251.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.